Had done a clean yesterday to try and resolve the issue, acprep update'd today and:
...
acprep: INFO: Setting up build flavor => opt
CDPATH="${ZSH_VERSION+.}:" && cd . && /bin/sh /Volumes/Data/svn/ledger/
missing --run aclocal-1.11 -I m4
aclocal-1.11: configure.ac:6: file `version.m4' does not exist
make: *** [aclocal.m4] Error 1
acprep: ERROR: Execution failed: make -j2 ARGS=-j2
